Improvement in presses



para aan.

W. J. I i/ieDEnivio'irr,` or' .c COVINGTON, TuNNEssEE.

` Laim Patent No'. 95,249, dated September. 2s, 12869.

IMPRVEMENT INPRE'ssEs.

` The Schedule referred to in these Letters Patent and making pakt of the same.

To all whom it may `concern Be it known that I, W. J. MoDEnMo'rT, of Covington, inthe county of Tipton7 and State of Tennessee, have invented a new` and useful Improvement in `Presses; and I do hereby declare that the following is afu'll, clear, and exact description thereof, which fwill enable others 'skilled-in the art to make and use the same, reference' being had tothe accompanying drawings, forming part of this specilication.

This invent-ion relates to improvements in presses for hay, cotton, andtheiike, and has for its` object to provide' a simple and' convenient arrangement "fo'r changing the application'of the power'when the resistance increases, io give a greater `force, the speed being decreased. Y

Figure 1 represents press, partly in section,and

Figure 2 representsahoiizontal section of the same.

Similar letters ofreference indicate corresponding parts. f v

he frame A is erected in a vertical position upon the bed B, which is' extended-at one side beyond thev vertical part. i

The follower O moves up from below, in pressing, and is actuated by a screw,\D,` which is screwed up and down by a screwed hub in a Wheel, E. This wheel is provided with two sets of cog-teeth, F and G. The

` `former gear with apinion, H, on the driving-shaft I,

ahd arranged to slidethreon for gearing and ungearing with the wheel E. .The latter teeth gear with a an elevation Vof my improved' worm, K, ona shaft L, parallel with the shaft I, and gearing with it by a'pair of toothedwheels, M, so as to be operated bythe same prime power.A

' The shaft L, at the end provided with the worm K, is placed in a sliding bearing, N, and provided with a hand-lever, 0for moving it. provided with a hand-lever,for sliding it.'

Power being applied to the belt-wheel on the shaft I, for rst moving the follower, the wheel H, which l gives the fast motion to the screw, isV geared with the Iwheel E, until by compression the resist-ance increases 'too much for the 'said fast motion, then the worm-gear is connected with the wheel E, and the wheel H thrown out. power as topermit the finishing of the movement of the follower without undue strain, although ata slower motion. 4

For returning the follower, the wheel H is employed, the worm being thrown out. c

Having thus described n'ly invention,

I claim as new, anddesire to secure lby Letters Patent- The combination, with the screw and follower, of the wheel E, having a screwed hub and two sets of teeth, E G, the wheels H K and their shafts, all arranged substantially as specified.

. l W. J. MCDERMOTT.

Witnesses:'

MGDANIEL, H. T. ZIEGLER.

The wheel H is also This so changes the leverage in favor of the 

